Version 1.3.0, which we were able to test, has a pleasingly sleek design. In terms of features, the machine offers several modes: "calculation", which handles rounding without being a computer algebra system stricto sensu; "functions"; "sequences"; and "statistics and probability", all standard high-school fare. One innovation is the ability to program in Python. The calculator also has an exam mode. The machine's most original feature is its open-source approach, as intended by its designers. Everything is available on the manufacturer's website (https://www.numworks.com/fr): the technical specifications (the hardware, wiring diagram, and so on), as well as the source code, which an expert Linux user could theoretically modify; updates; and various options for customizing the machine. All in all, this is a highly original and promising calculator with plenty to recommend it. The real question is whether a community will spring up around it. Watch this space... Also worth reading: Numworks: the French open-source calculator. Denis Bodor, Hackable Magazine 23, March 2018.